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We're a fully distributed team and as required by federal law this role is open only to any US citizen based in the US.

Why | What | Role | Stack | Challenges | How we work | Comp | Traction | Funding | Team


Nation states, criminal organizations, and lone wolves attempt to phish businesses, non-profits, and governments 24/7/365. When they succeed it can be extraordinarily destructive, disrupting coronavirus research, impacting a US presidential election, or damaging a country’s national defense. Email is the #1 attack vector, and last year phishing cost US businesses over $9B in direct financial losses.

Security professionals deserve superpowers that make them the heroes in this fight.


Sublime is making email security programmable.

Many companies have tried to solve phishing using black box ML. They've failed for the past 20 years. We're taking a different approach - we've created a DSL to enable security professionals, IT admins, and academic researchers to quickly develop new phishing detection rules. These new, community-built rules can be powered by arbitrary sets of ML models, 3rd party enrichment services, and custom functions. All backed by a GitHub-like system for version control that makes sharing and collaboration easy for the first time ever.

Here's an example of a moderately sophisticated phishing detection rule that is written in Sublime's Message Query Language (MQL):

// rules can detect inbound, internal, or outbound messages

// identify credential theft language in the body using NLU
and any(ml.nlu_classifier(body.current_thread.text).intents,
        .name == "cred_theft" and .confidence == "high"

// suspicious sender signals
and (
  beta.whois(sender.email.domain).days_old <= 30
  or profile.by_sender().days_known < 10
  or not profile.by_sender().solicited

To see more rule examples and for a deeper dive into Sublime, check out our docs or open-source rules feed.


As our first Product Designer, you will have a major impact on our product direction, brand, and company culture.

Ideally you have 4+ years of prior UX/UI design experience, shipping digital products end-to-end, from user feedback to mockups, prototypes, release, and launch.

At Sublime you will have an opportunity to:

If you feel like you don’t meet all of the requirements for this role, we encourage you to apply anyway. Imposter syndrome can get in the way of meeting incredible teammates, and we don’t want it to get in the way of meeting you.


Experience with any of these is a plus but not a requirement.

Figma, Notion, HTML/CSS